• Security Disclosures

Notice: Spring4Shell Vulnerability – Nagios does not use the Java Spring framework

Notice: Our response to CVE-2021-44228 and log4j in Nagios products

Reporting Security Vulnerabilities

At Nagios, we make security a priority. We strive to patch any security issues in a timely manner. We highly recommend using the latest versions available of our software. The latest versions will include security fixes that remediate the vulnerabilities shown below.

Please send security vulnerabilities found in any of the Nagios commercial products and security related emails to security@nagios.com. All non-security related bug reports should be given through a Support Ticket or through a post on the Support Forum.

Disclosed Vulnerabilities

Below is a listing of CVEs for patched security vulnerabilities that have been disclosed for Nagios products. Product version below does not mean that the security issue is only in that product version. Upgrade to the latest version to ensure all known vulnerabilities are patched. Scroll down to see all products.

Nagios XI 5.11

CVE Vulnerability Summary Remediation Summary

CVE-2023-40931

Authenticated users in Nagios XI <=5.11.1 are able to cause a SQL Injection using the Announcement Banner acknowledgement endpoint, even if no announcement banners exist. More details here.

Upgrade to Nagios XI 5.11.2 or above.

CVE-2023-40932

An attacker exploiting the Custom Logo component can inject arbitrary Javascript which will evaluate in the user’s browser on any page on the application. More details here.

Upgrade to Nagios XI 5.11.2 or above.

CVE-2023-40933

An attacker authenticated as the administrator is able to cause a SQL injection when changing announcement banner settings. More details here.

Upgrade to Nagios XI 5.11.2 or above.

CVE-2023-40934

An attacker authenticated as a user with Core Config Manager access is able to cause a SQL injection when managing host or service escalations. More details here.

Upgrade to Nagios XI 5.11.2 or above.

Nagios NCPA 2

CVE Vulnerability Summary Remediation Summary
CVE-2023-24037 The administrator login uses an insecure timing comparison. An attacker can brute-force the API token by measuring timing differences in this comparison. Upgrade to NCPA 2.4.1 or above.

Nagios XI 5.9

CVE Vulnerability Summary Remediation Summary
CVE-2023-24036 The session ID for API Authentication is generated using uniqid, which is based on the current time. An attacker can brute-force a valid session ID by guessing when a previous user authenticated against the API. Upgrade to Nagios XI 5.9.3 or above
CVE-2023-24035 The “Insecure Backend Ticket” Authentication (which is disabled by default) uses an insecure timing comparison. An attacker can brute-force the admin passive by measuring timing difference in the comparison. Upgrade to Nagios XI 5.9.3 or above
CVE-2023-24034 An issue was discovered in twilio_ajax_handler.php in Nagios XI 5.9.2. An attacker can force a user to visit a malicious site by using an open redirect vulnerability. Upgrade to Nagios XI 5.9.3 or above

Nagios XI 5.8

CVE Vulnerability Summary Remediation Summary
CVE-2022-29272 Certain crafted redirect URLs on the login page could be redirected to external URLs. Upgrade to Nagios XI 5.8.9 or above
CVE-2022-29271 Read-only users are able to submit a specific command to the schedule downtime page that would schedule downtimes. Upgrade to Nagios XI 5.8.9 or above
CVE-2022-29270 When changing a user’s email addresses, users are not required to confirm their password which could be used to reset a user’s password via email. Upgrade to Nagios XI 5.8.9 or above
CVE-2022-29269 Users could send HTML via setting the scheduled reporting message to have HTML code in it. Upgrade to Nagios XI 5.8.9 or above
CVE-2021-40345 Command injection security vulnerability in the cmdsubsys.php cron job for installation of dashlets, components, and config wizards. Upgrade to Nagios XI 5.8.6 or above
CVE-2021-40343 Permission security issue with file permissions for the migration script “nagios_unbundler.py” which could allow arbitrary code execution. Upgrade to Nagios XI 5.8.6 or above
CVE-2021-40344 Security issue with file validation in the admin  custom includes component allowed php files to be uploaded and executed. Upgrade to Nagios XI 5.8.6 or above or upgrade Custom Includes component to version 1.1.0 or above
CVE-2021-38156 XSS vulnerability in Manage My Dashboards edit dashboard title functionality. Upgrade to Nagios XI 5.8.6 or above
CVE-2021-37223 SSRF in Scheduled Reports when the report url is from outside the Nagios XI system. Upgrade to Nagios XI 5.8.6 or above
CVE-2021-33177 The Bulk Modifications functionality in Nagios XI versions prior to 5.8.5 is vulnerable to SQL injection. Exploitation requires the malicious actor to be authenticated to the vulnerable system, but once authenticated they would be able to execute arbitrary sql queries. Upgrade to Nagios XI 5.8.5 or above
CVE-2021-33178 The Manage Backgrounds functionality within Nagvis versions prior to 2.0.8 is vulnerable to an authenticated path traversal vulnerability. Exploitation of this results in a malicious actor having the ability to arbitrarily delete files on the local system as the apache user. Upgrade to Nagios XI 5.8.6 or above and ensure NagVis component is 2.0.9+
CVE-2021-33179 The general user interface in Nagios XI versions prior to 5.8.5 is vulnerable to authenticated reflected cross-site scripting. An authenticated victim, who accesses a specially crafted malicious URL, would unknowingly execute the attached payload. Upgrade to Nagios XI 5.8.5 or above
CVE-2021-37344 Nagios XI Switch Wizard before version 2.5.7 is vulnerable to remote code execution through improper neutralisation of special elements used in an OS Command (OS Command injection). Upgrade Switch config wizard from Admin > Manage Config Wizards to version 2.5.7 or above.
CVE-2021-37343 A path traversal vulnerability exists in Nagios XI below version 5.8.5 AutoDiscovery component and could lead to post authenticated RCE under security context of the user running Nagios. Upgrade to Nagios XI 5.8.5 or above
CVE-2021-37345 Nagios XI before version 5.8.5 is vulnerable to local privilege escalation because xi-sys.cfg is being imported from the var directory for some scripts with elevated permissions. Upgrade to Nagios XI 5.8.5 or above
CVE-2021-37346 Nagios XI WatchGuard Wizard before version 1.4.8 is vulnerable to remote code execution through Improper neutralisation of special elements used in an OS Command (OS Command injection). Upgrade WatchGuard config wizard from Admin > Manage Config Wizards to version 1.4.8 or above.
CVE-2021-37347 Nagios XI before version 5.8.5 is vulnerable to local privilege escalation because getprofile.sh does not validate the directory name it receives as an argument. Upgrade to Nagios XI 5.8.5 or above
CVE-2021-37348 Nagios XI before version 5.8.5 is vulnerable to local file inclusion through improper limitation of a pathname in index.php. Upgrade to Nagios XI 5.8.5 or above
CVE-2021-37349 Nagios XI before version 5.8.5 is vulnerable to local privilege escalation because cleaner.php does not sanitise input read from the database. Upgrade to Nagios XI 5.8.5 or above
CVE-2021-37350 Nagios XI before version 5.8.5 is vulnerable to SQL injection vulnerability in Bulk Modifications Tool due to improper input sanitisation. Upgrade to Nagios XI 5.8.5 or above
CVE-2021-37351 Nagios XI before version 5.8.5 is vulnerable to insecure permissions and allows unauthenticated users to access guarded pages through a crafted HTTP request to the server. Upgrade to Nagios XI 5.8.5 or above
CVE-2021-37352 An open redirect vulnerability exists in Nagios XI before version 5.8.5 that could lead to spoofing. To exploit the vulnerability, an attacker could send a link that has a specially crafted URL and convince the user to click the link. Upgrade to Nagios XI 5.8.5 or above
CVE-2021-37353 Nagios XI Docker Wizard before version 1.1.3 is vulnerable to SSRF due to improper sanitation in table_population.php Upgrade Docker config wizard from Admin > Manage Config Wizards to version 1.1.3 or above.
CVE-2021-36363
CVE-2021-36365
Local privilege escalation due to insecure permissions of the migrate.php and the repairmysql.sh files. Upgrade to Nagios XI 5.8.5 or above
CVE-2021-36364
CVE-2021-36366
Local privilege escalation due to wildcard expansion in backup_xi.sh and manage_services.sh files. Upgrade to Nagios XI 5.8.5 or above

Nagios XI 5.7

CVE Vulnerability Summary Remediation Summary
CVE-2021-25299 XSS vulnerability in the SSH Terminal page. Upgrade to Nagios XI 5.8.0 or above
CVE-2021-25298 OS command injection as the apache user through variables passed into the Config Wizard. Upgrade the Cloud-VM config wizard from Admin > Manage Config Wizards to version 1.0.4 or above.
CVE-2021-25297 OS command injection as the apache user through variables passed into the Config Wizard. Upgrade the Switch config wizard from Admin > Manage Config Wizards to version 2.5.4 or above.
CVE-2021-25296 OS command injection as the apache user through variables passed into the Config Wizard. Upgrade the Windows WMI config wizard from Admin > Manage Config Wizards to version 2.2.3 or above.
CVE-2021-3193 Unauthenticated remote code execution (RCE) vulnerability as the apache user in Nagios XI in the Docker config wizard. Upgrade the Docker config wizard from Admin > Manage Config Wizards to version 1.1.2 or above.
CVE-2021-26023
CVE-2021-26024
XSS vulnerability and IDOR allowing users to add a favorite to other users security vulnerability in Favorites component. Upgrade the Favorites component from Admin > Manage Components to version 1.0.2 or above.
CVE-2020-35578 Remote code execution (RCE) vulnerability in Nagios XI in Manage Plugins page when uploading plugin with option to convert line endings. Upgrade to Nagios XI 5.8.0 or above.
CVE-2020-28910 Creation of a Temporary Directory with Insecure Permissions allows for Privilege Escalation via creation of symlinks, which are mishandled in getprofile.sh. Upgrade to Nagios XI 5.8.4 or above for full changes.
CVE-2020-28648 Remote code execution (RCE) from improper input validation in the Auto-Discovery component allows an authenticated attacker to execute remote code. Upgrade to Nagios XI 5.7.5 or above.
CVE-2020-5790 Cross-site request forgery (CSRF) vulnerabilities in Nagios XI for SNMP Trap Sender and Manage MIBs admin pages. Upgrade to Nagios XI 5.7.4 or above.
CVE-2020-5791 An OS command injection vulnerability in the Admin Manage MIBs page. A remote, authenticated attacker with admin privileges may exploit this vulnerability to execute arbitrary OS commands with privileges of the ‘apache’ user. Upgrade to Nagios XI 5.7.4 or above.
CVE-2020-5792 An OS command argument injection vulnerability in the Send Custom Trap command in the SNMP Trap Interface. Upgrade to Nagios XI 5.7.4 or above.
CVE-2020-15903 Privilege escalation as user nagios to root in backend scripts that are run as root user due to permissions and included files. Upgrade to Nagios XI 5.7.3 or above.
CVE-2020-15901 Remote code execution as authenticated user in ajaxhelper.php allows remote attackers to execute arbitrary commands via cmdsubsys. Upgrade to Nagios XI 5.7.2 or above.
CVE-2020-15902 XSS vulnerability in Graph Explorer via the link url option. Upgrade to Nagios XI 5.7.2 or above.

Nagios XI 5.6

CVE Vulnerability Summary Remediation Summary
X-Force 179406 Possible postauth SQL injection in the SNMP Trap Interface page. User must have administative privliges to access. Upgrade to Nagios XI 5.6.14 or above.
X-Force 179405 Authenticated remote execution vulnerability in command_test.php script using the address paramater. User must have access to the CCM to access. Upgrade to Nagios XI 5.6.14 or above.
X-Force 179404 Authenticated remote code execution vulnerabilitiy in export-rrd.php in start, end, or step parameter. Upgrade to Nagios XI 5.6.14 or above.
CVE-2020-10821 XSS vulnerability as an authenticated user via the account/main.php theme parameter. Upgrade to Nagios XI 5.6.13 or above.
CVE-2020-10819
CVE-2020-10820
XSS vulnerability as an authenticated administrator via the LDAP/AD component username and password parameters. Upgrade to Nagios XI 5.6.13 or above.
CVE-2019-20197 Remote command execution as authenticated user. The user is able to execute arbitrary OS commands via shell metacharacters in the id parameter to schedulereport.php, in the context of the web-server user account. Upgrade to Nagios XI 5.6.10 or above.
CVE-2019-20139 XSS vulnerability exists via the nocscreenapi.php host, hostgroup, or servicegroup parameter, or the schedulereport.php hour or frequency parameter. An authenticated user can use this method of attack against any user. Upgrade the Operations Center component from Admin > Manage Components to version 1.3.3 or above.
CVE-2019-15949 Remote command execution as root vulnerability in Nagios XI’s getprofile.sh script. The script runs when profiles are created via the profile component. User must have access to edit plugins or access to the nagios user on the server. Upgrade to Nagios XI 5.6.6 or above.

Nagios XI 5.5

CVE Vulnerability Summary Remediation Summary
CVE-2019-9164 Command Injection vulnerability that allows specific command to remotely execute code when making a new autodiscovery job. Users must be authenticated and have access to autodiscovery to be able to execute a new job. Upgrade to Nagios XI 5.5.11 or above.
CVE-2019-9165 SQL Injection vulnerability via the API when using fusekeys and malicious user id. Upgrade to Nagios XI 5.5.11 or above.
CVE-2019-9166 Root Priviledge Escalation rearding permissions on config.inc.php and import_xiconfig.php allowing non-priviledged users to write to the files. This exploit requires access to the files on the server. Both files should be root owned with no write permissions. Upgrade to Nagios XI 5.5.11 or above.
CVE-2019-9167 XSS vulnerability that can be passed in using the xiwindow parameter. Upgrade to Nagios XI 5.5.11 or above.
CVE-2019-9202 Authorized remote code execution in Nagios IM component via API key issues. Upgrade Nagios IM component to version 2.2.7 or above.

Alternatively, remove the nagiosim component if not in use.

CVE-2019-9203 Authorization bypass in Nagios IM component allowing closing incidents in IM via the API. Upgrade Nagios IM component to version 2.2.7 or above.

Alternatively, remove the nagiosim component if not in use.

CVE-2019-9204 SQL Injection in Nagios IM component. Upgrade Nagios IM component to version 2.2.7 or above.

Alternatively, remove the nagiosim component if not in use.

CVE-2018-20171
CVE-2018-20172
Unauthorized XSS vulnerabilities in the rss_dashlet. This is related to the scripts in being URL-accessible from the Magpie RSS scripts scripts directory. Upgrade to Nagios XI 5.5.8 or above.

For immediate remediation remove the magpierss/scripts directory from rss_dashlet.

CVE-2018-15708 Unauthenticated Remote Code Execution via Command Argument Injection. A critical vulnerability exists in a custom version of Snoopy being used in MagpieRSS which allows a remote, unauthenticated attacker to inject arbitrary arguments into a “curl” command. This can be done by requesting magpie_debug.php with a crafted value specified in the HTTP GET ‘url’ parameter. Upgrade to Nagios XI 5.5.7 or above.

For immediate remediation remove the rss_dashlet if you are not using it.

CVE-2018-15709 Authenticated Command Injection. The Nagios subsystem is vulnerable to command injection in many cases. An authenticated attacker may inject and execute arbitrary OS commands. Must be an authenticated user (can be non-admin). Upgrade to Nagios XI 5.5.7 or above.
CVE-2018-15710 Local Privilege Escalation (to root) via Command Injection. An Auto Discovery script suffers from a local command injection vulnerability which can be exploited to gain
root OS privileges. Must be authenticated user with access to Auto Discovery component.
Upgrade to Nagios XI 5.5.7 or above.
CVE-2018-15711 Unauthorized API Key Regeneration. An low-privileged, authenticated user can force API key regeneration for any Nagios XI user (including admins). When the API key is regenerated, the new one is returned in the response body. Must be authenticated user. Upgrade to Nagios XI 5.5.7 or above.
CVE-2018-15712 Unauthenticated Persistent Cross-site Scripting. A persistent cross-site scripting (XSS) vulnerability exists in the Nagios XI Business Process Intelligence (BPI) component’s api_tool.php. Upgrade to Nagios XI 5.5.7 or above.
CVE-2018-15713 Authenticated Persistent Cross-site Scripting. A persistent cross-site scripting vulnerability was discovered in Nagios XI in admin/users.php. This vulnerability requires authentication to be exploited successfully. Upgrade to Nagios XI 5.5.7 or above.
CVE-2018-15714 Reflected Cross-site Scripting. A reflected cross-site scripting vulnerability exists within /usr/local/nagiosxi/html/account/checkauth.php. This vulnerability requires authentication to be exploited successfully. Upgrade to Nagios XI 5.5.7 or above.
CVE-2018-17147 A cross-site scripting (XSS) vulnerability exists in the auto login admin management page. Upgrade to Nagios XI 5.5.5 or above.

Nagios XI 5.4

CVE Vulnerability Summary Remediation Summary
CVE-2018-10554 An Cross Site Scripting vulernability (XSS) was discovered in Nagios XI 5.4.13 in scheduling new reports, downtime.php, ajaxhelper.php and deploynotifications. Upgrade to Nagios XI 5.5.0 or above.
CVE-2018-10553 The xiwindow parameter in Nagios XI can be used to load any web-accessible files into the iframe. These files can be accessed via apache normally, without the use of the xiwindow URL parameter. Avoid keeping any files that should not be accessed (or are not PHP and session authenticated) out of the /usr/local/nagiosxi/html directory.
CVE-2018-8733 Authentication bypass vulnerability in NagiosQL in Nagios XI 5.2.x through 5.4.x before 5.4.13 allows an unauthenticated attacker to make configuration changes and leverage an authenticated SQL injection vulnerability. Upgrade to Nagios XI 5.4.13 or above.

For immidiate remediation, remove the /etc/httpd/conf.d/nagiosql.conf apache configuration file and restart apache.

CVE-2018-8734
CVE-2018-10735
CVE-2018-10736
CVE-2018-10737
CVE-2018-10738
SQL injection vulnerabilities in the legacy NagiosQL component in Nagios XI 5.2.x through 5.4.x before 5.4.13 allows an attacker to execute arbitrary SQL commands via different pages and parameters. Upgrade to Nagios XI 5.4.13 or above.

For immidiate remediation, remove the /etc/httpd/conf.d/nagiosql.conf apache configuration file and restart apache.

CVE-2018-8735 Remote command execution (RCE) vulnerability in Nagios XI 5.2.x through 5.4.x before 5.4.13 allows an attacker to execute arbitrary commands on the target system, aka OS command injection. Attack requires an authenticated user with access to the CCM. Upgrade to Nagios XI 5.4.13 or above.
CVE-2018-8736 A privilege escalation vulnerability in Nagios XI 5.2.x through 5.4.x before 5.4.13 allows an attacker to leverage an RCE vulnerability escalating to root. Attack requires an authenticated user with access to the CCM. Upgrade to Nagios XI 5.4.13 or above.

Nagios Fusion 4

CVE Vulnerability Summary Remediation Summary
CVE-2020-28903 XSS vulnerabilities in data that is displayed in dashboard and dashlets. Update to Nagios Fusion 4.1.9 or above
CVE-2020-28905 Authenticated remote code execution (from the context of low-privileges user) in table pagination. Update to Nagios Fusion 4.1.9 or above
CVE-2020-28902 Privilege escalation from apache to nagios via command injection on timezone parameter in cmd_subsys.php. Update to Nagios Fusion 4.1.9 or above
CVE-2020-28901 Privilege escalation from apache to nagios via command injection on component_dir parameter in cmd_subsys.php. Update to Nagios Fusion 4.1.9 or above
CVE-2020-28904 Privilege escalation from apache to nagios via installation of malicious component. Update to Nagios Fusion 4.1.9 or above
CVE-2020-28900 Privilege escalation from nagios to root via upgrade_to_latest.sh. Update to Nagios Fusion 4.1.9 or above
CVE-2020-28907 Privilege escalation from apache to root via upgrade_to_latest.sh and modification of proxy config. Update to Nagios Fusion 4.1.9 or above
CVE-2020-28906 Privilege escalation from nagios to root via modification of fusion-sys.cfg. Update to Nagios Fusion 4.1.9 or above
CVE-2020-28909 Privilege escalation from nagios to root via modification of scripts that can execute as sudo. Update to Nagios Fusion 4.1.9 or above
CVE-2020-28908 Privilege escalation from apache to nagios via command injection in cmd_subsys.php. Update to Nagios Fusion 4.1.9 or above
CVE-2020-28911 Lower priviledged user can authenticate to fused server when credentials are stored. Update to Nagios Fusion 4.1.9 or above

Nagios Network Analyzer 2

CVE Vulnerability Summary Remediation Summary
CVE-2021-28925 A SQL injection in the API Sources endpoint. Update to Nagios Network Analyzer 2.4.3 and above
CVE-2021-28924 A XSS vulnerability has been discovered the Queries page. Update to Nagios Network Analyzer 2.4.3 and above

Nagios Log Server 2

CVE Vulnerability Summary Remediation Summary
CVE-2019-15898 A reflected (XSS) vulnerability has been discovered in Nagios Log Server via the username on the Login page. Update to Nagios Log Server 2.0.8 and above
CVE-2020-16157 A reflected (XSS) vulnerability has been discovered in Nagios Log Server via the Notification Methods on the Alerts page. Update to Nagios Log Server 2.1.7 and above

Nagios Core 4

CVE Vulnerability Summary Remediation Summary
CVE-2018-18245 A cross-site scripting (XSS) vulnerability has been discovered in Nagios Core. This vulnerability allows attackers to place malicious JavaScript code into the web frontend through manipulation of plugin output.
In order to do this the attacker needs to be able to manipulate the output returned by nagios checks, e.g. by replacing a plugin on one of the monitored endpoints. Execution of the payload then requires that an authenticated user creates an alert summary report which contains the corresponding output.
Update to Nagios Core 4.4.3 or Nagios XI 5.5.9 and above
(You can also patch this with Core maint branch)